@article{OPUS4-13826, title = {Search for \(W′→t\overline {b}\) in the lepton plus jets final state in proton-proton collisions at a centre-of-mass energy of \(\sqrt {s}\)=8 TeV with the ATLAS detector}, series = {Physics Letters B}, volume = {743}, journal = {Physics Letters B}, organization = {ATLAS Collaboration}, doi = {10.1016/j.physletb.2015.02.051}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-138262}, pages = {235-255}, year = {2015}, abstract = {A search for new charged massive gauge bosons, called W′W′, is performed with the ATLAS detector at the LHC, in proton-proton collisions at a centre-of-mass energy of \(\sqrt {s}\)=8 TeV, using a dataset corresponding to an integrated luminosity of 20.3 fb\(^{-1}\). This analysis searches for W′W′ bosons in the \(W′→t\overline{b}\) decay channel in final states with electrons or muons, using a multivariate method based on boosted decision trees. The search covers masses between 0.5 and 3.0 TeV, for right-handed or left-handed W′W′ bosons. No significant deviation from the Standard Model expectation is observed and limits are set on the \(W′→t\overline{b}\) cross-section times branching ratio and on the W′W′-boson effective couplings as a function of the W′W′-boson mass using the CL\(_s\) procedure. For a left-handed (right-handed) W′W′ boson, masses below 1.70 (1.92) TeV are excluded at 95\% confidence level.}, language = {en} }